I am glad you resurrected this thread. I have some new (since then) characters who have made their way from fiction to Skyrim on occasion.
January is absolutely a milk drinker. Literally. She prefers almond milk btw. While she is a ferocious fighter, she is motivated by empathy and compassion for others, not hate, or vengeance, or cruelty. Everything she does in motivated by the desire to treat others with the same kindness and decency that she wishes they would treat her with.
Blood Raven is almost the opposite. She has a limited store of empathy, and rations it out with care. She does not drink milk, she devours life. Being a vampire after all. Still, she always endevours to fight the good fight, and be on the right side of history. She has been around long enough for history books to have been written about events she has helped shape after all, sometimes to her dismay.
Avery is definitely a milk drinker too. Like January, he is just a good person at heart, who wants to do right by others. But unlike her, he is not a fearless warrior. Instead he is a prudent wizard, and not one to dive into situations without knowing whether he can get himself out of them later.
Ryo is another milk drinker. Though certainly the least milkiest of January, Avery, and himself. He is again a kind person, who wants to make things better for people. But he's more willing someone whom he calculates is a threat that cannot be otherwise contained. He keeps a tight rein on his emotions. But when he loses his temper, he will end the person who caused that to be so, unless someone else intervenes to stop him.
White Fell is not a milk drinker. She is an albino orphan from the backwoods. Life has not been easy for her, and other people rarely rarely improve her life. Still, like Blood Raven, she wants be on the right side of history. So she fights the good fight, and is ready to kick back and enjoy a tankard of ale after smiting a few evildoers.
Mortis has forgotten what milk is. She is a tomb-raider who became a semi-permanent resident of one of the tombs she tried to raid. Now she is a draugr. She has left the tomb and gone out to explore the world that has turned on in her long absence, and occasionally plays at being alive by wearing a disguise (
which is totally believable btw, completely fooling everyone...)